These large absolute differences between the skeletal ages of the hand-wrist and the knee cannot be explained completely by the effects of observer errors.
手腕部和膝部骨龄之间所存在的较大的绝对差值不能完全用观察误差加以解释。
Based on observer method, an algorithm of actuator fault detection and diagnosis is presented for a class of nonlinear control systems with system modeling errors and sensor modeling uncertainties.
针对一类具有系统建模误差以及含传感器模型不确定项的非线性控制系统，本文提出了一种用于执行器故障检测与诊断的观测器方法。
Finally, the paper gives out the tracking ripple errors about the feedback system of the acceleration observer.
最后给出了有、无加速度观测器反馈时系统跟踪晃动误差曲线。
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